Airmanship. I had a discussion with a CAE instructor who said the most important part of an incident like this, is to complete all procedures and check lists, not to get on ground fast.
I did not agree. Still don’t.
For Boeing 777 and 787 the 'Fire, Smoke or Fumes' non-normal checklist emphasises more than once not to delay landing in order to complete the checklist. I suspect other Boeing models have similar wording.